Book cover protector



Oct. 20, 1936. A. T. WIALRAVEN 2,057,987

BOOK PROTECTOR Filed Feb. 15, 1955 s snee'ts sneet 1 I I I I ,l l-

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I I 'l I I I I Oct. 20, 1936. w j v 2,057,987

BOOK COVER PROTECTOR Filed Feb. 15, 1935 3 Sheets-Sheet 2 Oct. 20, 1936. A. T. WALRAVE N 2,057,937

BOOK COVER PROTECTOR Filed Feb 15, 1955 V s Sheets-Sheet s P 7 I 1 5 WM/T/ 77 Wa/fa/m Patented Oct. 20, 1936 UNITED STATES PATENT 3 Claims.

This invention relates to new and useful improvements in book cover protectors.

One object of the invention is to provide an improved protector formed of a rectangular sheet of material which may readily be applied to books of various sizes.

An important object of the invention is to provide a protector wherein the tabs which fold over the corners of the book are of sufiicient length to overlie the contiguous flap and fasten to an adjacent flap, whereby the underlying flap is securely held in place.

A further object of the invention is to provide an improved protector having elongated tongues which fold over the corners of the book cover to reinforce said corners, the tongues being of sufiicient length to provide increased gripping surfaces to assure their remaining in position when glued or otherwise fastened.

Still another object of the invention is to provide an improved book cover protector which is provided with an arrangement of guide lines, whereby tabs and flaps for holding and reinforcing are readily formed, said tabs and flaps being such as provide a more simple and better cover which overcomes the disadvantages present in the usual cover of this type.

A construction designed to carry out the invention will be hereinafter described, together with other features of the invention.

The invention'will be more readily understood from a reading of the following specification and by reference to the accompanying drawings, in which an example of the invention is shown, and wherein:

Figure l is a face view of the outer or obverse side of the protector sheet,

Figure 2 is a partial face view of the inner or reverse side of the cover,

Figure 3 is a view similar to Figure 2, showing the back tongue and one of the side flaps folded inwardly,

Figure 4 is a view similar to Figure 3, showing the upper and lower flaps folded down over the side flap,

Figure 5 is a similar view, showing the next stepin the folding,

Figure 6 is a partial View of the inner face of the cover, showing the corner tabs folded down,

Figure '7 is an enlarged view of the inner side of one of the completed corners,

Figure 8 is a face view of the outer side of another form of book cover,

Figure 9 is a partial detail view, showing, the back tongue folded inwardly,

Figure 10 is a detail View showing the inner side of the protector and the upper flap folded down,

Figure 11 is a similar view showing the inner side of the protector and the next step in the 5 folding,

Figure 12 is a view similar to Figure 11 and showing the sides of the cover folded down With the elongated corner tab ready to be folded inward, and 10 Figure 13 is an enlarged partial view of the inner face of the cover, showing the completed cover.

In the drawings, the numeral Hi designates a sheet of heavy paper or other suitable matel5 rial from which the protector is made. Each corner of the sheet is out off at an angle of about forty five degrees. At the top and bottom of the center of the sheet, diverging groups of parallel guide lines H are printed or impressed on the outer or obverse side of the sheet. Extending from the center portion of each side of said sheets, divergent guide lines !2 are similarly provided.

In fitting the protector to a book the latter, as indicated by dotted lines A, is laid on the sheet so that its corners B register with one of the guide lines B2, or is adjacent thereto. The sheet is then out along these lines as is indicated in Figure l. The sheet is also out along the lines I l as is also indicated in this figure.

'The book is removed and the sheet i0 is turned over so that its inner face is uppermost as shown in Figure 2. The diverging cuts at the top and bottom in the groups H form top and bottom tongues l3 which are folded inwardly (Figure 2). The book is now laid on the sheet so that its back rests on the tongues it which act to reinforce the back. When the lines I2 are cut, triangular shaped end flaps M are formed and these 40 flaps are folded down over the book cover boards as shown in Figure 3. As clearly shown in this figure, cutting on the lines H and [2 provide top and bottom flaps 15, as well as elongated corner tabs it. After the end flaps [4 have been folded down, the top and bottom flaps I5 are folded inwardly thereover (Figure 4) the elongated tabs it projecting, as shown.

The next step is to fold the tabs it under or down onto the outer side of the sheet (Figure 5),

whereby elongated pointed tongues ii are provided. These tongues are then folded inwardly over the top and bottom flaps l5 and are of sumcient length to overlie a goodly portion of the end flaps it (Figure 6). The tongues may be fastened in any suitable manner. For instance, the inner faces of the tabs I6 may be coated with an adhesive so that the tabs may be glued to both sides of the protector at the corners thereof as will be evident from Figures 6 and 7. It is pointed out that the elongated tongues I! assure a positive fastening of the corners and there is no danger of the tongues coming loose because the size and length of the tongue provide suificient gripping surface. Also, the tongues l6 overlap the end flaps i4 and serve to hold said end flaps downwardly in close proximity to the book cover board, whereby the end flaps are retained in their folded positions which eliminates the danger of said flaps bowing upwardly and coming loose from the corner tabs which hold them in position.

In Figures 8 to 13, I have shown another form of the invention. In this form, the guide lines 12 are eliminated and guide lines which diverge from the top and bottom of the sheet inwardly toward the ends of the sheet are provided. The book is placed on the cover in the same way and the sheet is cut along one of the lines 20, as well as along the lines II. The cutting on the lines ll forms the reinforcing tongues 13, while the cutting on the lines II and 20 form top and bottom flaps 2| (Figure 8). After the tongues l3 have been folded inwardly, the flaps 21 are then folded inwardly, as shown in Figure 10.

The particular cutting along the lines 20 forms the elongated corner tabs IS on the end portions 22 of the sheet. These end portions are then folded inwardly (Figure 11) over the flaps 2|, after which the tabs I6 are folded around the corner. The elongated tongues then overlie the end portions and are secured to the flaps 2! (Figure 13). In both forms it is obvious that the tongues are of sufficient length to provide increased gripping surface to hold the various flaps in position. Also, the length of the tongues is such that the end flaps 22 are retained in close proximity to the book cover. This prevents their bowing outwardly and slipping from place, thereby retaining them in position at all times. It is obvious that the size of the cover may be readily changed to accommodate various size books.

What I claim and desire to secure by Letters Patent, is:

1. A book cover protector having flaps along its top, bottom and ends, tabs at each corner of the protector, said flaps being folded inwardly to enclose the covers of a book, the tabs being folded outward to reinforce the corners and each being of sufficient length to be then folded inwardly on the opposite side of the cover to overlie and project across and beyond one of the folded flaps so as to be fastened to one of the other adjacent flaps, whereby the underlying flaps are held in place.

2. A book cover protector having flaps along its top, bottom and ends folded inwardly to enclose the covers of a book, acutely angular elongate tabs at each corner of the protector, said tabs each being folded down against the outer face of the cover so as to provide an elongate projecting tongue of sufiicient length to be folded inwardly to overlie and project beyond and across one of the flaps so as to be fastened to one of the other adjacent flaps, whereby the underlying flaps are held in place.

3. A book cover protector having flaps along its top, bottom and ends folded inwardly to enclose the covers of a book, tabs at the corners of the protector folded outwardly on the side opposite to the flaps and each provided with an elongate tongue folded inwardly over one of the flaps and being of such length as to extend transversely across said flap and to overlie an adjacent flap, and means for securing each tongue to the adjacent flap whereby both flaps are held in place.

ALBERT T. WALRAVEN. 

